lapi/fanotify.h: Include <linux/types.h>

to add kernel types (__s32, __u32, ...).

This fixes build on various Buildroot toolchains:

In file included from fanotify.h:14,
                 from fanotify04.c:25:
../../../../include/lapi/fanotify.h:198:2: error: unknown type name ‘__s32’
  198 |  __s32 error;
      |  ^~~~~
../../../../include/lapi/fanotify.h:199:2: error: unknown type name ‘__u32’
  199 |  __u32 error_count;
      |  ^~~~~

NOTE: Historically we tried to minimize number of linux includes,
because it would often lead to broken builds. Headers got better over
time and LTP also dropped support for archaic kernels over time.
Therefore we can keep original kernel types here.

Fixes: 67069fc ("syscalls/fanotify22: Validate the generic error info")

Reviewed-by: Cyril Hrubis <[email protected]>
Signed-off-by: Petr Vorel <[email protected]>

Author: pevik

include/lapi/fanotify.h

@@ -9,6 +9,7 @@
 
 #include "config.h"
 #include <sys/fanotify.h>
+#include <linux/types.h>
 
 #ifndef FAN_REPORT_TID
 #define FAN_REPORT_TID		0x00000100